| 摘要 |
In one instance, a user equipment (UE) determines, at an application layer, an application activity that triggers a service request before data arrives at a buffer of the UE. In response to the determining, the UE may send, from a NAS layer (non-access stratum layer), the service request to a base station requesting one or more radio bearers for one or more service contexts when no radio bearer is assigned for the one or more service contexts. Alternatively, the UE may send a schedule request from a lower layer than the NAS layer when the radio bearer is already assigned before data arrives at the buffer of the UE. |
